Atrial fibrillation activation patterns predict freedom from arrhythmias after catheter ablation: utility of ExTRa mapping™.

ABSTRACT:

Background

Mechanisms underlying atrial fibrillation (AF) are widely complex and vary tremendously among individuals.

Objectives

This retrospective study aimed to investigate the association between AF activation patterns and clinical outcomes post-ablation.

Methods

Fifty-five AF patients (64.0 ± 12.9 years; 41 men; 17 paroxysmal) underwent bi-atrial endocardial driver mapping during AF pre-ablation with a real-time phase mapping system (ExTRa Mapping). The nonpassively activated ratio (%NP) of meandering rotors and multiple wavelets relative to the recording time was evaluated in 26 atrial segments [15 in the left atrium (LA) and 11 in the right atrium]. Irrespective of the mapping results, all patients underwent standard AF ablation via cryoballoons and/or radiofreq

SUBMITTER: Aoyama D 

PROVIDER: S-EPMC10416434 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature